Hemodynamics of small hepatocellular carcinomas (5 cm or less in diameter): Cases with discrepant findings between dynamic MR images and hepatic arteriograms

1995 ◽  
Vol 20 (6) ◽  
pp. 534-540 ◽  
Author(s):  
T. Imaeda ◽  
R. Mochizuki ◽  
M. Kanematsu ◽  
Y. Yamawaki ◽  
H. Goto ◽  
...  
Keyword(s):  
Mr Images ◽  
Hepatocellular Carcinomas ◽  
Dynamic Mr

MAGNETIC RESONANCE IMAGING OF EPITHELIOID SARCOMA IN THE FOREARM: A CASE REPORT

Hand Surgery ◽  
1998 ◽  
Vol 03 (01) ◽  
pp. 151-154
Author(s):  
T. Ozaki ◽  
H. Hashizume ◽  
T. Kunisada ◽  
H. Inoue
Keyword(s):  
Magnetic Resonance Imaging ◽  
Case Report ◽  
Magnetic Resonance ◽  
Epithelioid Sarcoma ◽  
Resonance Imaging ◽  
Mr Images ◽  
Dynamic Mr

We report findings on plain, gadolinium (Gd) diethylenetriaminepentaaetic acid (DTPA) enhanced, and dynamic MR images of an epithelioid sarcoma in the forearm.

scholarly journals Analysis of contrast-enhanced dynamic MR images of the lung

2001 ◽  
Vol 13 (4) ◽  
pp. 577-587 ◽  
Author(s):  
Geir Torheim ◽  
Tore Amundsen ◽  
Peter A. Rinck ◽  
Olav Haraldseth ◽  
Giovanni Sebastiani
Keyword(s):  
Mr Images ◽  
Contrast Enhanced ◽  
Dynamic Mr

An independent software system for the analysis of dynamic MR images

1997 ◽  
Vol 38 (1) ◽  
pp. 165-172 ◽  
Author(s):  
G. Torheim ◽  
M. Lombardi ◽  
P. A. Rinck
Keyword(s):  
Visual Analysis ◽  
Area Under The Curve ◽  
Correlation Coefficients ◽  
Region Of Interest ◽  
Mr Images ◽  
Relative Signal Intensity ◽  
Time To Peak ◽  
File Formats ◽  
Dynamic Mr ◽  
Cine Loop

Purpose: A computer system for the manual, semi-automatic, and automatic analysis of dynamic MR images was to be developed on UNIX and personal computer platforms. The system was to offer an integrated and standardized way of performing both image processing and analysis that was independent of the MR unit used. Material and Methods: The system consists of modules that are easily adaptable to special needs. Data from MR units or other diagnostic imaging equipment in techniques such as CT, ultrasonography, or nuclear medicine can be processed through the ACR-NEMA/DICOM standard file formats. A full set of functions is available, among them cine-loop visual analysis, and generation of time-intensity curves., Parameters such as cross-correlation coefficients, area under the curve, peak/maximum intensity, wash-in and wash-out slopes, time to peak, and relative signal intensity/contrast enhancement can be calculated. Other parameters can be extracted by fitting functions like the gamma-variate function. Region-of-interest data and parametric values can easily be exported. Results and Conclusion: The system has been successfully tested in animal and patient examinations.

Detectability of Hypervascular Hepatocellular Carcinoma by Arterial Phase Images of MR and Spiral CT

1995 ◽  
Vol 36 (4-6) ◽  
pp. 372-376 ◽  
Author(s):  
Takamichi Murakami ◽  
Tonsok Kim ◽  
Hiromichi Oi ◽  
Hironobu Nakamura ◽  
Hideji Igarashi ◽  
...  
Keyword(s):  
Mr Imaging ◽  
Spiral Ct ◽  
Arterial Phase ◽  
Breath Hold ◽  
Mr Images ◽  
Iodized Oil ◽  
Hepatocellular Carcinomas ◽  
Significant Difference ◽  
Phase Images ◽  
Arterial Chemoembolization

The ability of arterial phase images of breath-hold MR imaging and spiral CT to detect hypervascular hepatocellular carcinomas (HCCs) was evaluated. Prior to transcatheter arterial chemoembolization (TACE) with iodized oil, MR images and spiral CT during i.v. bolus injection of contrast medium (IV-MR imaging and IV-spiral CT) and spiral CT during intraarterial injection of contrast media through catheter (IA-spiral CT) of the entire liver were obtained in 24 consecutive patients with 93 HCCs. In the detection of HCCs less than 1 cm in diameter, IA-spiral CT (87.3%) was superior to IV-MR imaging (63.5%) and IV-spiral CT (54.0%) (p<0.001). There was no significant difference in detectability in any tumor size between IV-MR imaging and IV-spiral CT. IA-spiral CT was the best for detecting hypervascular HCCs, and there was no significant difference between IV-MR imaging and IV-spiral CT.

An independent software system for the analysis of dynamic MR images

1997 ◽  
Vol 38 (1) ◽  
pp. 165-172 ◽  
Author(s):  
G. Torheim ◽  
M. Lombardi ◽  
P. A. Rinck
Keyword(s):  
Software System ◽  
Mr Images ◽  
Dynamic Mr

Malignancy characterization of hepatocellular carcinomas based on texture analysis of contrast-enhanced MR images

2016 ◽  
Vol 45 (5) ◽  
pp. 1476-1484 ◽  
Author(s):  
Wu Zhou ◽  
Lijuan Zhang ◽  
Kaixin Wang ◽  
Shuting Chen ◽  
Guangyi Wang ◽  
...  
Keyword(s):  
Texture Analysis ◽  
Mr Images ◽  
Hepatocellular Carcinomas ◽  
Contrast Enhanced
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